A Semi-automated GIS Model for Extracting Geological Structural Information from a Spaceborne Thematic Image

Dadon, Alon; Peeters, Aviva; Ben‐Dor, Eyal; Karnieli, Arnon

doi:10.2747/1548-1603.48.2.264

Cited by 6 publications

(3 citation statements)

References 29 publications

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“…However, the description and interpretation of the result from an individual joint set are not included in the context of this study. The susceptibility to failure is represented in the range of 0 to 100, categorized into five classes: very low (0-20), low (21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40), moderate (41)(42)(43)(44)(45)(46)(47)(48)(49)(50)(51)(52)(53)(54)(55)(56)(57)(58)(59)(60), high (61)(62)(63)(64)(65)(66)(67)(68)(69)…”

Section: Resultsmentioning

confidence: 99%

“…To the rescue are several techniques developed to determine discontinuity orientations on a regional scale by utilising remotely sensed images in combination with GIS techniques. A semi-automatic GIS model was proposed in [54] for extraction of the orientation of planar structural elements through spaceborne thematic images and the Digital Terrain Model (DTM). In [25], a method was developed for the detection and quantification of a general trend of bedding planes using stereoscopic aerial photographs and the subsequent use of TOBIA to evaluate the dependence of landslide types on local structural settings.…”

Section: State-of-the-artmentioning

confidence: 99%

“…It is realised that manual collection of dense discontinuity information in the mountainous region is not always feasible due to the prevalence of inaccessible areas in a higher proportion. In these cases, particular photogrammetric techniques could be used to obtain geo-structural information as suggested by some researchers [54,[74][75][76]. However, for the application and validation of the present methodology and algorithms, an area was chosen where sufficiently dense discontinuity orientation and geo-structural boundaries are available in the literature.…”

Section: Preparation Of Geo-structural Informationmentioning

confidence: 99%

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A GIS-Based Kinematic Analysis for Jointed Rock Slope Stability: An Application to Himalayan Slopes

Kundu

Sarkar

Ghaderpour

et al. 2023

Land

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GIS-based kinematic stability analysis in rock slopes is a rare practice in geological engineering despite its immense potential to delineate unstable zones in a mountainous region. In this article, we have used a GIS-based modified technique to assess the efficiency of kinematic analysis in predicting shallow landslides in the rock slopes of the Himalayan mountains on a regional scale. The limited use of this technique is primarily due to the complexities involved in its practical application. To make this technique more effective and convenient usability, we present modified methods and a new application, ‘GISMR’, that works with the aid of GIS software for the determination of kinematic susceptibility. A modified kinematic analysis method was implemented to define the stability in terms of failure susceptibility on a scale of 0 to 100 rather than a conservative result, such as failure or non-failure. We also present another functionality of the GISMR that provides optimised slope angles over a region. This functionality could aid the decision-making process when selecting a suitable location for a road path or other engineering constructions that are impacted by unstable mountain slopes. The applicability of this new method was demonstrated in a rock failure-prone region in the mountains of the Indian Himalayas. The outcomes delineate the unstable slopes in the region, which are intersected by a strategic National Highway 05 and have a long history of landslide-related hazards. It was found that 9.61% of the area is susceptible to failure. However, 2.28% is classified as a low susceptible region, and 2.58% of the area is very-low susceptible. The regions with moderately high, high, and very-high susceptibility cover 2.78%, 1.49%, and 0.46% of the whole area, respectively. The results were evaluated by receiver operating characteristic curve and a frequency ratio method to represent the association between kinematic susceptibility and the mass movement inventory in the area. It is concluded that kinematic susceptibility has a strong relationship with landslide activity in the rock slopes of the Himalayan region.

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